CVE-2026-97362
8.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Summary
HFS2 version 2.4.0 and earlier contains a denial of service vulnerability that allows unauthenticated attackers to cause a complete and persistent loss of availability by sending a single crafted request. Attackers can trigger a hung serving thread that enters a busy loop, rendering the entire file server unresponsive to all clients without self-recovery until an operator manually restarts the service.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| rejetto | hfs2 | 2.0.0 <= 2.4.0 | affected |
Weaknesses
- CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: yes
- Technical Impact: partial
References
- https://github.com/wgetnz/hfs2/blob/master/advisories/hfs2-getini-infinite-loop-dos/README.md
- https://www.vulncheck.com/advisories/hfs2-unauthenticated-denial-of-service-via-hung-serving-thread
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